datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,11 0:30:00,29 ,       0,1.391937,0.270226,0.416144
sgpcmbeC1.c1,2005,11 1:30:00,30 ,       0,1.817716, 0.34814,0.593959
sgpcmbeC1.c1,2005,11 2:30:00,30 ,       0,1.632039,0.317326,0.522331
sgpcmbeC1.c1,2005,11 3:30:00,30 ,       0,1.584521,0.280975, 0.47606
sgpcmbeC1.c1,2005,11 4:30:00,30 ,       0,1.826779,0.402272,0.604373
sgpcmbeC1.c1,2005,11 5:30:00,30 ,       0,1.616821,0.343141,0.562286
sgpcmbeC1.c1,2005,11 6:30:00,30 ,       0,1.991567, 0.71891,0.731026
sgpcmbeC1.c1,2005,11 7:30:00,30 ,2.331265,49.57733,31.24731,13.23248
sgpcmbeC1.c1,2005,11 8:30:00,30 ,7.148786,78.81632,52.73113,14.50843
sgpcmbeC1.c1,2005,11 9:30:00,30 ,6.605648,134.7516,52.85693, 22.5085
sgpcmbeC1.c1,2005,1110:30:00,30 ,11.39729,130.7357,58.24296,36.01857
sgpcmbeC1.c1,2005,1111:30:00,30 ,8.591032,113.9438,30.23138,27.61456
sgpcmbeC1.c1,2005,1112:30:00,30 ,2.247309,161.5257,35.96992,47.38681
sgpcmbeC1.c1,2005,1113:30:00,30 ,12.01345,145.4216,47.60571,39.48695
sgpcmbeC1.c1,2005,1114:30:00,30 ,20.50403,132.7871,52.01798,28.26774
sgpcmbeC1.c1,2005,1115:30:00,30 ,13.43319,97.82123,54.42286,21.03132
sgpcmbeC1.c1,2005,1116:30:00,30 ,12.59411,67.84723,44.50675,12.46095
sgpcmbeC1.c1,2005,1117:30:00,30 ,1.017666,19.38006,7.624721, 4.26433
sgpcmbeC1.c1,2005,1118:30:00,30 ,       0,1.704984,0.350437,0.547093
sgpcmbeC1.c1,2005,1119:30:00,30 ,       0,1.680255,0.273055,0.475952
sgpcmbeC1.c1,2005,1120:30:00,30 ,       0,1.652049,0.368245,0.562321
sgpcmbeC1.c1,2005,1121:30:00,30 ,       0,1.571741,0.370011,0.567321
sgpcmbeC1.c1,2005,1122:30:00,30 ,       0,1.751705,0.379921,0.624687
sgpcmbeC1.c1,2005,1123:30:00,30 ,       0,1.777611, 0.43441,0.598858